package boboUtil;

import java.util.*;
import java.util.concurrent.ConcurrentHashMap;
import java.util.concurrent.locks.ReentrantLock;

public class Test {
    public static void main(String[] args) {
//        Collection collection = null;
//        AbstractCollection abstractCollection = null;
//        List list = null;
//        ArrayList arrayList = null;
//        arrayList.equals(null);
//
//        LinkedList linkedList = null;
//        AbstractSequentialList abstractSequentialList = null;
//
//        Set set = null;
//        HashSet hashSet = null;
//        Map map = null;
//        HashMap hashMap = new HashMap();
//        Hashtable hashtable = null;
//        Collections collections = null;
//        ConcurrentHashMap concurrentHashMap = null;
//        ReentrantLock reentrantLock = new ReentrantLock();

        System.out.println(0|7);
    }
}



